Machine for making curb-chains.



No. 645,039. Patenied Mar. 6, I900. W. l. MACUMBER.

MACHINE FOR MAKING CURB CHAIN.

' {Application filed Dec. 5, 1898.) (N0 Ifiodel.) 5 ShaotsSha|Bt I.

W 7 Y BY No. 645,039. Patented Mar. 6, I900.

w. I. MACOMBER.

MACHINE FOR MAKING CURB CHAIN.

(Application filed Dec. 5, 1898. (No Model.) 5 Sheets-Sheet v2.

.15.4 WI'T'NEESEEZ I FGJE. FTEJE. ['TEJ4. INVENTDRI fizzf m: uonms PETERS 00.. PHOTG-LITHQ, WASHINGTON, n. c.

No. 645,039. Patentad Mar. 6, I900.

w. l. MACOMBEB.

MACHINE FOR MAKING CURB CHAIN.

. (Application filed. Dec. 5, 1898.) (No Model.) 5 Sheets-Shae! 3 WITNESEIES'. INVEN'TDR'.

No. 645,039. Patented Mar. 6, I900. W. I. MACOMBER.

MACHINE FOR MAKING CURB CHAIN.

(Appiication flied Dec. 5, 1898.

(No Model.) 5 Sheets-Sheet 4.

Hu k I -1 1m: uonms PETERS ca. PHOTO-LITHOH wAsmNc'rou, n. c.

Patented Mar. 6, I900. l.

mAcomsas.

MACHINE FOR MAKING CURB CHAIN.

(Application filed Dec. 5, 1398.;

' 5 Sheeis-$heet 5,

(No Model.)

INVEN T m R. 17!.JZQQWM av 7 WITNEESES'. I fyzfm ATTY.

nu: Nomus PEYERS co, morournu, WASHINGTON, u. c.

ihvrirnn STATES PATENT Orrron.

VVILlLIAM I. MAOOMBER, OF NORWOOD, RHODE ISLAND, ASSIGNOR TO REGNELL, BIGNEY (it 00., OF ATTLEBOROUGH, MASSACHUSETTS.

MACHINE FOR MAKING CURB-CHAINS.

SPECIFICATION forming part of Letters Patent No. 645,039, dated March 6, 1900. Application filed December 5, 1898. Serial No. 698,330. (No model.)

To all whont it may concern.-

Be it known that 1, WILLIAM I. MAOOMBER, a citizen of the United States, residing at Norwood, in the county of Providence and State of Rhode Island, have invented a new and useful Improvement in Machines for Making Curb-Chains, of which the following is a specimandrel.

fication. v

The nature of my invention consists in the improved construction and arrangement of parts whereby the chain may be formed in an expeditious manner and of superior quality.

In the accompanying drawings, Figure 1 represents a top view of the machine. Fig. 2 represents a side elevation. Fig.3 represents a top view with the parts in a different position from that shown in Fig. 1. Figs. 4 to 16, inclusive, represent side views and detail edge views of the several cams. Fig. 17 represents a section taken in the line 17 17 of Fig. 1. Fig. 18 represents the same section when the parts are in the position shown in Fig. 3. Fig. 19 represents a section taken in the line 19 19 of Fig. 3. Figs. 20 and 21 represent enlarged detail sections taken in the line 19 19 of Fig. 3, showing the carrier-jaws in their reversed positions. Fig. 22 represents a section taken in the line 22 22 in Fig. 19. Fig. 23 represents an end view of the slide shown in Fig. 22 for closing the rotative jaws employed for twisting the link. Fig. 24 represents a section taken in the line 24 24 of Fig. 3. Fig. 25 represents a section taken in the line 25 25 of Fig. 1. Fig. 26 represents a section taken in the line 26 26 of Fig. 25. Fig. 27 represents an end view of the tool for spreading the ends of the severed wire coil upon the Fig. 28 represents a side View of the same. Fig. 29 represents a detail side view showing the wire wound upon the mandrel and the means for spreading theends of the link, the tool for spreading the ends being in its backward position. Fig. 30 represents a rear end view of the rock-shaft for holding the spreading-tool.

sents the parts shown in Fig. 29 with the spreading-tool brought forward. Fig. 32 represents the same with the rock-shaft turned to spread the end of the link. Fig. 33 represents a rear end view of the rock-shaft when in the position shown in Fig. 32. Fig. 34 rep- Fig. 31 repre- In the drawings, A represents the frame or 1 bed of the machine; B, the driving-shaft; G, the driving-pulley; D, a pinion secured to the, driving-shaft, and E a driven gear secured to the cam-shaft F. The wire a from which the chain is formed after passing through a guide-eye a is wound upon thorotative mandrel G, held in the sleeve b,wl1ich passes downward through the bushing e, secured by means of its flange to the under side of the table and forminga bearing for the rotation of the sleeve. The lower end of the sleeve b is provided with the pinion b',which engages with the gear 22 held for rotation upon the stud b the said gear being actuated for revolution by means of the spring-actuated ratchet-dog b loosely secured to the pivoted lever 12 provided at its outer end with the slot b", and by means of the said slot and the stud b operative connection is made with the slide which is reciprocated by means of the adjustable crank-pin b and the connecting-rod Z2 whereby the mandrel G will be caused to make one complete revolution for windingthe wire to form the link at each revolution of the cam-shaft F. Upon the backward movement of the ratchet-dog b the revolving cutter H, held in the slide 0 will be brought forward by means of the lever 0 pivoted at the stud c and connected with the slide 0 by means of the stud c and slot 2 the outer end of the lever 0 being actuated to carry the cutter H forward by means of the sliding rod 0 and the cam I, the said sliding rod being held in the bearing-stands 0 0 and between the bearing-stand 0 and the collar 01 is placed the compression spiral spring at, which serves to draw the cutter I-I backward when the sliding rod 0 is released from the acting surface d? of the cam. When bearing-stand d and the collar 6 the upper coil of wire upon the mandrel G has been severed by the saw H, the spreadingtool J, formed with the penetrating lip (Z located at one side of the axis of the sliding and rotative shaft 01 to which it is attached, is brought forward, as shown in Fig. 3l,to cause the spreading of the ends of the severed coil 62 from each other, as shown in Fig. 34. The sliding and rotative shaft 01 is supported by the bearing-stands d d and is provided at its outerend .with the crank-arm d from which operative connection is made with the cam K by means of the sliding rod 61 held in the guides d d the reverse rotary movement of the spreading-tool being effected by means of the compression -spring d, held upon the rod (1 between the guide c1 and the pin d which passes through the rod. The required endwise movement of the sliding and rotative shaft d is effected by means of the lever L, which bears against the end of the said shaft and is pivoted at the stud e and actuated to carry the spreading-tool forward by means of the side cam M, which engages with the antifriction -roller 6, the spreading tool being withdrawn from the mandrel by the resilient action of the compression-spring 6 which is held between the When the ends of the upper coil d have been thus spread from each other, the grooved jaws 6* e arebrought forward to embrace the opposite edges of the coil preparatory to its transfer to the link closing and twisting means of the machine, the said jaws e e being arranged to slide back and forth between the pivotallyoperated holding-guides e e, being connected thereto by means of screw-studs e, which pass loosely through slots 6 in the end portions of the holding-guides, as shown in Figs. 17 and 18. The grooved jaws e e are secured to each other by means of the cross-bar e and the adj Listing-screw e ,by means of which the space between the jaws e e may be adjusted to properly fit the sides of the link.

The holding-guides e e are not connected with each other, but are actuated conjointly to make a semirevolution upon their pivotaxes f f, which are loosely held in the fixed lugs f f, projecting upward integrally from the bed A, by means of the cams NN, which operate upon the antifriction-rollers f f of the sliding bars f 3 f which are provided with the downwardly-extending slotted ends f y, from which by means of studsf f operative connection is made with the levers f 6 f pivoted to the lugs f f and provided with the segment-gears f 7 f which engage with the pinions f f secured upon the pivot-axes of the said holding-guides e 6 so that the said holding-guides, although separate from each other, will be caused to move in unison screws g as shown in Fig. 20, and the desired reciprocating movement is imparted to the' slidef by means of the rock-shaft 9 provided with an enlarged end bearing g in the lug f and with an eccentric-pin g which enters a vertical groove g in the edge of the slide f and the required rotative movement is imparted to the rock-shaft g by means of the cam 0 upon the shaft F, the said cam being arranged to act upon the engaging end g of the slidingbarg held in the bearing-stands 9 g and actuated outwardly fromthe shaftFby means of the spiral spring h, which is held upon the sliding bar g between the bearing-stand g and the cross-pin h, the outer end of the sliding bar 9 being connected to the crank-arm k secured to the end of the rock-shaft g When the jaws e e are thrown over, as shown in Fig. 21, to remove the severed coil (1 from the winding-mandrel,the said jaws are carried forward for engagement with the said coil by the engagement of the slide-bracket g with the cross-bar c and when the sliding jaws e e are thrown over to the position shown in Fig. 20 for delivering the severed coil to the out of engagement with the delivered link by the engagement of the cross-bar c with the notch h of the slide-bracket g.

When the pivotally-held sliding carrierjaws c 'e with the contained open coil d are turned in a vertical plane to the position shown in Figs. 19 and 20, the'turning jaws h h which hold the previously-formed link at the backward position of the said jaws, are brought forward by the action of the cam P, so that the open link held in the carrierjaws e e will engage with the closed link held inthe turning jaws. Then the action of the cam Q causes the backward movement of the sliding bar 71,, which movement will cause a corresponding movement of the lever b pivoted at the point 71. and having its end socketed in the edge of the sliding bar it", the said sliding bar being actuated in the forward direction by means of the spiral spring 2" and provided at its forward end with an upward extension i which at its inner side forms a bearing for the end of the adjusting-screw 2' upon the shank i of the movable jaw 77. the said movable jaw being actuated in its opening movement by means of the spiral spring 1"", and upon the release of the previously-formed link from the turning jaws the action of the cam P upon the socketed antifriction-ball t will cause the forward movement of the turning jaws to seize the link held in the carrier-jaws, and upon such seizure the open ends of said link will be closed together between the said jaws. Then the backward movement of the carrier-jaws by the action of the cam 0. upon the slidebracket will serve to release the link from the carrier-jaws, and then the action of the cams N N will serve to throw the carrier jaws back to the winding-mandrel for the recep pivoted to the jaw j at the point j the said jaws being operated in their opening movement by means of the spiral springj and in their closing movement by means of the sliding rod 3"", which is prevented from turning by suitable means and has an inclined end j", adapted to operate the jaw j in its closing moment, the said jaw being provided with the shankj in which is placed the adjustingscrew j against which the inclined surface j is caused to act to close the jaws by means of the side cam R, which operates upon the antifriction-roller 7' at the end of the lever 7c, pivoted at the point 7t and operating to throw the sliding rod 7' inward, the said rod being actuated in its outward direction by means of the spiral spring To the end of the hollow shaft j is secured the crank-arm and to theouter end of the said crank-arm is connected the sliding bar 710 held in the bearing-stands 7.; k and provided at its outer end with the antifriction-roller 7& for engagement with the internal edge cam S, and by means of the said cam and the opposing spring 70 the jaws jj are actuated in their forward and backward movement. When the closed link iis being held between the turning jaws 77, h and the holding-jaws jj', a quarter of a turn will be imparted to the turning jaws by means of the cam T upon the shaft F, the lever 70 pivoted to the table at the stud 71: provided with the antifriction-roller Z and actuated toward the cam by means of a coiled torsionspring m, (shown enlarged in Fig. 24,) the jointed connecting-rod Z, and the crank-arm Z, to which the said rod Z is connected, the said crank-arm being secured to the bearingsleeve Z held loosely in the bearing-stand Z and within the bore of the sleeve l is secured the spline Z", which is loosely held in the longitudinal groove Z made in the sliding spindle U, so thata rotative movement imparted to the sleeve Z will be also imparted to the spindle U, which carries at its forward end the turning jaws 7L4 71 and the rotative movement thus imparted to the spindle will cause the proper twisting of the link, upon the completion of which the intermediate holding-jaws j j are released from their hold upon the link and turned to their downward position preparatory to the subsequent pres entation of a new link by the action of the carrier-jaws, and as these operations are continuously performed the completed chain IV will pass downward over thegrooved pulley V.

I claim as my invention- I 1. In a chain-machine, the combination of the bed or table, the winding-mandrel 10- cated above the table, the sleeve for holding the mandrel, the pinion secured to the sleeve below the table, the gear engaging with the pinion, and ratchet means for rotating the gear, with the revolving cutter above the table, and means for moving the cutter toward and from the mandrel, for cutting off the wire coil in timely relation to the rotation of the mandrel, substantially as described.

2. In a chain-machine, the combination of the intermittently-rotated winding-mandrel, the revolving cutter for severing the wire of the coil, and means for moving the cutter toward and from the mandrel in timely relation to the rotation of the mandrel, with the grooved sliding carrier-jaws provided with the cross-bar and adjusting means, the separate pivoted holding-guides for the carrierjaws, means for operating the pivoted holding-guides to cause the transfer of the severed coil from the mandrel to the link closing and twisting mechanism, and means for causing the forward movement of the sliding carrierjaws within the holding-guides, at the completion of their forward and backward pivotal movements, substantially as described.

3. In a chain-machine, the combination of the intermittently-rotated winding-mandrel, a cutter for severing the wire of the coil, and means for moving the cutter toward and from the mandrel,with the pivotally-actuated sliding carrier-jaws, means for operating the same, the turning jaws, the intermediate holding-jaws, and means for operating the said holding and turning jaws, substantially as described.

4-. In a chain-machine, the combination of the intermittently-rotated mandrel, a cutter for severing the wire coil, and reciprocating and rotative means for spreading the severed ends of the coil upon the mandrel, substantially as described.

5. In a chain-machine, the combination of the sliding carrier-jaws,the closing and turning jaws, and the intermediate holding-jaws, with means for causing the transfer of the open link from the carrier-jaws to the turning jaws, and for presenting the link so held to the holding-jaws, and means for twisting the link between the turning and holding jaws, substantially as described.

6. In a chain-machine, the combination of the intermittently-rotated winding-mandrel, the cutter for severing the wire of the coil, and reciprocating and rotative means for spreading the ends of the previously-severed coil upon the mandrel, with the sliding carrierjaws, the pivotally-held holding-guides for the sliding carrier-jaws, means for imparting pivotal movement to the holding-guides and the carrier-jaws, to cause the removal of the spread coil from the mandrel and to present its opened end to the previously-formed closed and twisted link held in the turning jaws, and the turning jaws adapted to present the completely-formed twisted link for engagement with the opened wire coil held in the pivotally-operated carrier-jaws, substantially as described.

7. In a chain-machine, the combination of the intermittently-rotated winding-mandrel, the revolving cutter for'severing the wire of the coil, means for spreading the severed ends of the end coil while held upon the mandrel, the pivotally-held sliding carrier-jaws adapted to remove the spread coil from the mandrel and present its opened end to the previously-formed twisted link held in the turning jaws, and means for causing the pivotal turning movement of the sliding carrierjaws, with the opposite turning jaws adapted to present the completely-formed twisted link for engagement with the spread wire coil held between the carrier-jaws, means for causing the release of the completed link from the turningjaws, means for causing the subsequent engagement of the turning jaws with the spread wire coil held between the carrierjaws and for closing the ends of the wire coil between the turning jaws, and means for withdrawing the sliding carrier-jaws from the closed link, substantially as described.

8. In a chain-machine, the combination of the sliding carrier-jaws adapted for pivotal movement, and the turning jaws adapted for sliding and rotative movement, with the intermediate pivotally-operated holding-jaws adapted to seize the end of the closed link after its release from the carrier-jaws, means for rotating the turning jaws to cause the twisting of the link between the holding and turning jaws, and means for opening and closing the holding and turning jaws, substantially as described.

9; In a chain-machine, the combination of the pivotally-operated sliding carrier-jaws, and the turning jaws, with the intermediate holding-jaws arranged transversely of the hollow shaft for pivotal movement, and a'sliding rod arranged within the hollow shaft, and provided with an inclined end for actuating the movable holding-jaw in the plane of its pivotal movement, to seize the end of the link released from the sliding carrier-jaws, substan tially as described.

10. In a chain-machine, the combination of the intermittently-operated windingmandrel,

with the pivoted holdinguides, the sliding carrier-jaws arranged between the holdingguides, the slide provided with the engaging brackets for actuating the carrier-jaws, and means for operating the slide, substantially as described.

XVILLIAM I. MACOMBER.

Witnesses:

SOCRATES SOHOLFIELD, HENRY O. BOWEN. 

